In real life, my own grandfather gave te household budget to my grandmother for the very reason I stated. This may not represent every man, but likely more than people care to imagine.Have you ever balanced a checkbook? It's basic subtraction and addition. Balancing the household budget was considered secretarial work, and beneath a man's capabilities back then. That's like telling a man to be his own secretary. If you think the modern woman isn't capable of balancing a checkbook, thats a different discussion, but it was standard MO for a wife pre-2000.
In a fictional work based on periodic reality, Bridgerton shows upper class families and it's the men doing the estate bookkeeping, not the women, unless the man is traveling or deceased. I'm sure this practice applied to families I'm the US also who had money or at least were not poor.
I don't think it's as clear cut or blanketed as a financial balancing being "beneath" a man.